CVE-2026-9336

IBM WebSphere Application Server 9.0, and 8.5 is vulnerable to a denial of service, caused by sending a specially-crafted HTTP request to an administrative endpoint. A remote attacker could exploit this vulnerability to cause the server to exhaust filesystem space.

  • Published Sep 10, 2026
  • CVSS 7.5 high
  • 0.8% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

CVE-2026-9336 at the National Vulnerability Database